Please sync mercurial 1.6.3-1 from Debian experimental

Binary package hint: mercurial

Debian changelog:
 mercurial (1.6.3-1) experimental; urgency=low

   * New upstream release 1.6.3
   * Deleted patch from_upstream__issue2255fix-basicauth.diff which is now
         included upstream.

This is a monthly bugfix release. It includes several significant fixes, including a fix for a long-standing hardlink corruption issue on Windows. Upstream changelog:

    * alias: make shadowing behavior more consistent (issue2054)
    * bisect: better message for unrelated starting revisions
    * bookmarks: Check if the bookmark to delete exists on the remote
    * bookmarks: guard against listing bookmarks on unsupported repos
    * chunkbuffer: use += rather than cStringIO to reduce memory footprint
    * convert: Using --dest-type svn crashed, if the source repo used tags.
    * convert: properly set encoding for gnuarch converter
    * convert: use encoding.encoding instead of locale.getpreferredencoding()
    * encoding: improve handling of buggy getpreferredencoding() on Mac OS X
    * graphlog: mark --branch as incompatible with --graph
    * http basic auth: reset redirect counter on new requests (issue2255)
    * httprepo: decompress stream incrementally to reduce memory usage
    * log: fix the bug 'hg log --stat -p == hg log --stat'
    * mercurial.spec: gettext is a build requirement for getting proper localization
    * merge: drop reference to file contents after write
    * merge: move reverse-merge logic out of filemerge (issue2342)
    * merge: fix detection of conflict markers with checkconflicts enabled
    * mq: don't inherit default and default-push paths with --mq (issue2333)
    * resolve: updated help documentation for improved clarity
    * revlog: drop cache after use to save memory footprint
    * templatefilters: unnest uescape()
    * templates: add filenolink to raw style (issue2332)
    * url: expand vars in all [auth] settings (issue2328)
    * url: limit expansion to safe auth keys (Issue2328)
    *

      util: avoid using hashlib on Python < 2.5 (issue2278)
    * verify: initialize rp variable in case we hit out of memory
    * verify: reduce memory footprint when unpacking files
    * verify: report exceptions that don't have a str() method
    * win32: correctly break hardlinks on network drives (issue761)

(http://mercurial.selenic.com/wiki/WhatsNew#A1.6.3_.282010-08-26.29)

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: mercurial 1.6.2-2
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Mon Sep 6 21:11:42 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
 PATH=(custom, no user)
 LANG=ru_RU.utf8
 SHELL=/bin/bash
SourcePackage: mercurial